Wired: Keywords: To Buy or Not to Buy

My spin:Keyword buying – it definitely can increase sales. But read this article for some problems that are starting to crop up.News Clip: SAN JOSE, California — Where once Internet advertisers obsessed over banner ads, these days the buzz is all about keywords.
Spurred by buying from small businesses, sellers of sponsored keyword results — the paid links that pop up in response to specific search queries — have seen their business surge over the last two years.
But as more merchants look to snap up the same keywords, search-engine experts say they also appear to be pushing up prices.(full story)